The ion Cs+ is isoeletronic with the neutral atom of xenon (54 electrons).
The Sulfide ion, S2-, is isoelectronic with Cl-
Xe, Ba2+
As it is an alkali metal, it forms the Cs+ ion
Atoms or ions that have the same number of electrons as helium (2 electrons) are considered isoelectronic with helium. Examples of species that are isoelectronic with helium include H+, Li+, Be2+, and B3+.
Cs does not have a nobel gas electron configuration, as it contains one valence electron in its outermost s orbital. Be3+ also does have a nobel gas electron configuration, as this occurs when Be has a 2+ charge (the typical Be ion is Be2+).
The ion that is isoelectronic with Xe is Kr+. Both Xe and Kr+ have the same number of electrons, with 54 electrons each.
Ca2+ is isoelectronic with the noble gas, Argon. F-, Mg2+ are isoelectronic with the noble gas, Neon. I- is isoelectronic with the noble gas, Xenon
isoelectronic
The isoelectronic of iodide (I-) is xenon (Xe), because both species have the same number of electrons.
The Sulfide ion, S2-, is isoelectronic with Cl-
The electron configuration of caesium is: [Xe]6s1.
[Xe] 6s1
True. Both the strontium ion (Sr2+) and xenon (Xe) have the same number of electrons when considering the ionization states: 54 electrons. This means they are isoelectronic.
H-, Li+, Be2+ ions are isoelectronic with helium
The common d-block ion that is isoelectronic with Zn^2+ is Cu^+. Both ions have the same number of electrons, specifically 28.
Xe, Ba2+
As it is an alkali metal, it forms the Cs+ ion